What are the maximum volume sizes and maximum file sizes for the various Windows file systems?

John Savill

November 11, 2002

1 Min Read
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A. Windows 2000 and later support FAT, FAT32, and NTFS file systems. (The next version of Windows, code-named Longhorn, will support a new file system known as WinFS). The table below lists the maximum volume sizes and maximum file sizes for FAT, FAT32, and NTFS.

FAT

Operating systems

All versions of Windows and DOS

Windows .NET Server 2003, Windows XP, Windows 2000, Windows 98, Windows 95 OEM Service Release (OSR) 2

Windows .NET Server 2003, Windows XP, and Windows 2000 support NTFS 4 and 5 (previous version of Windows NT support NTFS 4 only)

Maximum volume size

4GB

2TB (although Windows XP lets you format only up to 32GB but can read larger volumes)

You can use 64KB clusters to achieve a 256TB volume (any volumes larger than 2TB must be dynamic, not basic)

Minimum volume size

Floppy disk

512MB

10MB (although some tools let you format a floppy drive as NTFS, see Sysinternals.com)

Maximum file size

4GB

4GB

Size of volume

Maximum files per volume

512 files or folders per folder *

65,534 files or folders per folder *

4,294,967,295

* If you use long filenames, you will reduce the number of files per folder.

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